Walter bentley iroodbtjryi of london



-gnitrh .tstrs gut-rut ifths WALT-ER BENTLEY W'OODBURY, OF, LONDON,GREAT BRITAIN.

Letters Patent m. 77,231, dated 4pm. 28, 18,68.

"IMP OVEMENT IN THE rnopucrrou or ORNAMENTAL soreness roe JEWELRY, e0.

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TO'A LL WHOM IT MAY CONCERN:

, Be it known that I, WALTER. Bnurnnr-wooneonr of London, in. the countyof Middlesex, Kingdom of Great Britain-end Ireland, have inventedcertain'new ,and useful Improvements inthe Production of Orna,

mentnl Surfaces for Jewelry, and other 'Purposes; and I do herebydeclare the following to be e-full, clear,

and exact descriptionof the same. I I p I My invention relates to the.productionof surfaces to be used. for-jewelry and other. drnamentzrlpurposes 7 by the aid of photography, and the principal featureofhovelty in the invention consists iu the use ofc, combinotion ofmaterials, one of whichis opaque and the other transparent orsemi-transparent. ,An ornamental relieve or 'intaglio surfacebeing'produced onthe former, the tra-nsper.ent or semitrcnspare utmaterial is forced therein andunited thereto, nndthc pictur'e ororn'amentwill be seen th'rough'th'e upper materiel, more or less,according to the thickness of the same, I I l v I For example, I take ametol mould, produced by the method described in'the' specification ofIie ttersPaten't, granted to me, and hearing date at Washington, the20th day of February, A. D. 1866, No'. 52,803, (but produced from atransparent photographic positive.inste ad of a. negative,)' andItukcaujimpression or cast therefrom,-iu whitematerial, such as porcelain,plaster of Paris, or enamel; or if a ncga tivcbe used "to pro; dycethemetal mould, I tirke a. reversed cost or clectrotype therefrom, and takethe impression in whitematerial from this reversed copy. This cost soobtained will have theqlights in high'relief, and the shadesproportionately countersunk or depressed. r V

I then force: into this white cast or mould a colored semi-transparentmateriehsuch as glass or enamel, and I grind or otherwise level down thesurface of the latter uhtil the white cost becomes silflicie'ntlyvisible through the semi-transparent material to produce the ,efl'ectdesired, the ,formershowing more or less, according to the thinness orthickness of the semi-transparent material. I then unite'orc e'mentthese two materials together,

by fusion or otherwise, and the result is a. permanent picture orornament'iun combined opaque and semi tr nspa ent substance. v 1 l i Orthe two materinls may be united. together before the grinding away orlevelling down of the semitran'Sphrcnt material, I v I i 7 As a.modification of my-invention, I produce ametnllic surface in relievo; 0rintaglio by the 'electrotype process,,or by stomping, embossing, orotherwise, and then silver or gild it by any known method, andafterwards fill in with the semi-transparent vitreous or. othermaterial, as above (leserihed. I

Or, instead'of taking a, cast or copy, as above first mentioned, inwhite muterial, I take an impressio'n ihebonite or other black-ordark-colored substance, end I fill in with a semi-transparent whiteor'lightvcolored materiel, so that the effect is produced by thedark-color showing more, or less through the semi-transporent white orlight-coloredmaterial.

The only condition neccssary'to this invention being that the reliefshall be upon the lower or opaque material constituting the body of thepicture or ornament, which must be of a. difleren-tor opposite color tothat of the semi-transparentmaterial used-for filling in the surface.- 1i i What I-claim as my invcntiomnnd desire to secure by Letters Patent,is-' The production ofsurfaces to be used for jewelry nud otherornamental purposes by theaid of photography,-

substantially as hereinbefore set forth anddescribed.

Intestiinony whereof, I have signed my tune to this specification in thepresence of two subscribing witnesses.

, WALTER. B. WOODBURY.

Witnesses:

Geonen DAVIES, F. G. MIOKLEWRIGHT.

